Use the relative path when providing the location of the file. Place the file in the project folder and access it according to the hierarchy. If you want to access a file outside the project folder, provide the absolute path.

java.io.FileNotFoundException: /home/oracle/Ext/Oracle/Middleware/user_projects/domains/endeca_domain/servers/StudioManagedServer/tmp/_WL_user/studio-portal/n9hjrc/war/WEB-INF/liferay-plugin-package.xml (Too many open files) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.(FileInputStream.java:120) at java.io.FileInputStream.(FileInputStream.java:79) at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:70) at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:161) at com.liferay.portal.util.HttpImpl.URLtoString(HttpImpl.java:728) at com.liferay.portal.kernel.util.HttpUtil.URLtoString(HttpUtil.java:289) at com.liferay.portal.deploy.hot.PluginPackageHotDeployListener.readPluginPackage(PluginPackageHotDeployListener.java:67) at com.liferay.portal.deploy.hot.PluginPackageHotDeployListener.doInvokeDeploy(PluginPackageHotDeployListener.java:207) at com.liferay.portal.deploy.hot.PluginPackageHotDeployListener.invokeDeploy(PluginPackageHotDeployListener.java:167) at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._doFireDeployEvent(HotDeployUtil.java:108) at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._fireDeployEvent(HotDeployUtil.java:153) at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:43) at com.liferay.portal.kernel.servlet.PortletContextListener.portalInit(PortletContextListener.java:113) at com.liferay.portal.kernel.util.PortalInitableUtil.init(PortalInitableUtil.java:48) at com.liferay.portal.kernel.servlet.PortletContextListener.contextInitialized(PortletContextListener.java:109) at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:481) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:181) at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1868) at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3154) at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1518) at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:484) at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52) at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119) at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200) at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:247) at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52) at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119) at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:27) at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:671) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52) at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212) at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:59) at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161) at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79) at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:184) at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:361) at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:51) at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:200) at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:30) at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:240) at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:169) at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:123) at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:180) at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:96) at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256) at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)